Paper-ejecting mechanism.



H. C. GAMMETER. PAPER EJECTING MECHANISM.

APPLICATION FILED JUNE I6. I914.

Patented Aug. 3, 1915.

' JUL MW 6. $WM5- i entrants HARRY C. .GAMMETER, 0F ULEVELAND, ()HIG,AS$IGNDR TO THE. AMERICAN MULTI- GBAPH COMPANY, 015 CLEVELAND, OHIO, ACORPORATION OF OHIO.

PAPER-EJEUJING MECHANISM.

EpBeiiieatiOn of Letters ratent.

Patented Aug. a, min.

delivering the paper from small rotary printing machines, forexample,'such machines as carry individual type and may be operated byhand for ofice use.

The invention is hereinafter more fully described and the essentialcharacteristics are set out in the claims.

In the drawings, Figure '1 is an end View, I

partly broken away, of my ejecting mechanism in place in a rotaryprinting machine which is shown somewhat diagrammatically;; Fig. 2 is aplan of a portion of such printing machine just above the platen andejecting mechanism, this view showing a sheet of paper passing throughthe machine; Fig. 3 is a perspective view on an enlarged scale of theejecting mechanism proper.

' As shown in Fig. 1, 1 represents the frame of the machine, 2 a rotaryprinting drum,

3 a coacting rotary platen, 4: a fountain inking roller, 5 a form rollercontacting with the fountain roller and with the drum, and 6 and 7suitable feeding rollers. .These parts may be of any well-known.construction.

Connected with the platen 3 is a gear 10 which may coact with a gear onthe drum (not shown) for driving the platen. This gear also meshes withan idler 11 carried by the frame 1, which idler meshes with a gear 12 onthe shaft of an ejector roller 13. This roller is therefore continuouslyrotated,

when the drum is rotated, in a direction to deliver the printed sheet A,as indicated by arrows in Fig. 1.

Slidahly mounted on a cross rod 20 are arms 21 carrying rollers 22designed to rest on and coact with the roller 13. Each 21 is preferablya sheet metal member having a top plate and side plates 23 bent at rightangles thereto and provided with eyes 24 which surround the rod 20 andmay shift the rollers 22 laterally, as desired, while always in positionto coact with the roller 13.

The rollers 22 are held in coaction with the roller 13 by a coiledspring 2? between the ears 23, this spring having one end 28 overhangingand bearing downwardly on the top of the arm 21 and the other end turnedupwardly into a longitudinal. groove 29 along the under side of the rod20. This construction, while enabling the arm to be sh fted laterally,as desired, maintains, a spring action to cause the roller 22 to bear onthe roller 13.

30 indicates a pair of flat strippers which extend between the drum andplaten near the opposite ends of the drum and lie above the paper andoperate to strip it from the drum after it has passed. the line ofprintlng impression. These strippers are shown as sheet metal stripshaving bent forward ends 32 which loosely embrace a stationary cross rod33. At their rear ends the strips have upward side flanges 35 which haveeyes surrounding the rod 20. The flanges 35 start at some distance inadvance of the rollers 22 and an opening 37 is made through the bottomof the strip at this roller so that it may act on the roller 13..

It will be seen that the construction is extremely simple. It iseffective in stripping the paper from the printing drum and directing itto the ejector rollers 13 and 22, which deliver it at the rear of themachine.

.The positioning of the strippers beyond the printed page while over themargin of the paper automatically positions the ejector rollers 22 sothat there is no danger of their engaging the printing surface. This insures the delivery of a clean copy.

Having thus described my invention, what I claim is:

1. The combination, with a printing device, of a delivery roll, anejector roll adapted to coact therewith, an arm carrying the ejectorroll, a rod on which the arm is pivotally and slidably mounted, and aspring acting on the arm irrespective of its lateral position.

2. The combination, with a printing device, of a delivery roll, anejector roll adapted to coact therewith, an arm carrying the ejectorroll, said arm consisting of a plate flanged at its edges to form asupport for the roll and having eyes at its rear to surround astationary rod, and a spring surrounding the rod between the eyes andacting on the arm, said spring having one end tilt extending over theintermediate portion of may be concurrently positioned.

4.'The combination, with a rotary printing couple, of a fiat stripextending between the two, a rod parallel with the couple, an armadjustable along said rod, a roller carried by said arm, and aconnection between the flat strip and the arm for simultaneousadjustment.

5. The combination, with a rotary printing couple, of a fiat stripextending between the two, a rod parallel with the couple, an armadjustable along said rod, and a' roller carried by said arm, said stripbeing flanged at its rear portion to extend alongside of the arm andembrace the rod.

6. The combination, with a printing couple, of a rod parallel therewith,an arm slidably mounted on the rod and carrying a roller, a roller withwhich the roller first mentioned coacts, and a strip extending be tweenthe members the couple and flanged at its rear portion and provided witheyes extending around the rod.

7 The combination, with a printing couple, of a rod parallel therewith,an arm slidably mounted on the rod and carrying a roller, a roller withwhich the roller first mentioned coacts, and a strip extending betweenthe members of the couple and flanged at its rear portion on oppositesides of the arm and provided with eyes extending around the rod, saidstrip having an opening through which the roller on the arm acts.

8. The combination, with a printing couple, of a delivery roll, anejector roll adapted to coact therewith, an arm carrying the ejectorroll, said arm consisting of a plate flanged at its edges to form asupport Gopies of this patent may he obtained for five cents each, byaddressing the Commissioner of l'atents.

masses for the roll and having eyes at its rear to surround a stationaryrod, a spring surrounding the rod between the eyes and acting on thearm, said spring having one end extending over the intermediate portionof the arm and the other end turned into a longitudinal groov'ein therod, and a stripper extending between the members of the couple andembracing the arm and having eyes surrounding the rod.

9 The combination, with a rotar printing couple, of a laterallyshiftablo l at strip extending between the two, a rod parallel with thecouple, said strip being flai'iged at one end and provided with eyes toembrace the rod slidably, said strip having a hook at its other end, anda rod which said hook slidably embraces.

10. The combination, with a printing couple, of a rod paralleltherewith, an. arm slidably mounted on the rod and carrying a roller, aroller with which the roller first mentioned coacts, a strip extendingbetween the members of the couple and flanged at its rear portion onopposite sides of the arm and provided with eyes extending around therod, the forward end of said strip being bent backwardly in a U-shape,and a rod carrying such forward end.

11. The combination 01" a rotary printing couple, a pair of stripsextending between the members of the couple, a rod in front of thecouple carrying the forward end of the strips, a paper feeding device atthe front of the couple beneath such forward ends of the strips, a rodat the rear of the couple, a delivery roller at the rear of the couple,arms slidably mounted on said rod and carrying rolls resting on andcoacting with the delivery rollers, the rear ends of said strips beingflanged upwardly onto opposite sides of the arm and provided with eyesextending around the rod.

In testimony whereof, I hereunto allix my signature in the presence oftwo witnesses.

HARRY O. GAMMETER. Vllitncsses E. F. Konuro, T. H. Vi Hrrn.

Washington, D. G.

